Heat transfer appliance



FIG. 1 is a front elevation view of the heat transfer appliance showing our new design.

FIG. 2 is a top plan view of the heat transfer appliance.

FIG. 3 is a left side elevation view of the heat transfer appliance.

FIG. 4 is a right side elevation view of the heat transfer appliance.

FIG. 5 is a rear elevation view of the heat transfer appliance.

FIG. 6 is a bottom plan view of the heat transfer appliance.

FIG. 7 is a front perspective view of the heat transfer appliance; and,

FIG. 8 is a front perspective view of the heat transfer appliance attached to a standard water heater.

In the drawings, the broken lines depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for the heat transfer appliance, as shown and described. 